129 lines
5.3 KiB
Java
129 lines
5.3 KiB
Java
/*
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* Copyright (c) 1999, 2008, Oracle and/or its affiliates. All rights reserved.
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* DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
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*
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* This code is free software; you can redistribute it and/or modify it
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* under the terms of the GNU General Public License version 2 only, as
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* published by the Free Software Foundation.
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*
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* This code is distributed in the hope that it will be useful, but WITHOUT
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* ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
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* FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
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* version 2 for more details (a copy is included in the LICENSE file that
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* accompanied this code).
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*
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* You should have received a copy of the GNU General Public License version
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* 2 along with this work; if not, write to the Free Software Foundation,
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* Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
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*
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* Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
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* or visit www.oracle.com if you need additional information or have any
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* questions.
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*/
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/*
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*
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*/
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package bench.serial;
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import bench.Benchmark;
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import java.io.ObjectInputStream;
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import java.io.ObjectOutputStream;
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import java.io.ObjectStreamClass;
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import java.io.Serializable;
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/**
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* Benchmark for testing speed of class descriptor reads/writes.
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*/
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public class ClassDesc implements Benchmark {
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static class Dummy0 implements Serializable { Dummy0 i0; }
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static class Dummy1 extends Dummy0 { Dummy1 i1; }
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static class Dummy2 extends Dummy1 { Dummy2 i2; }
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static class Dummy3 extends Dummy2 { Dummy3 i3; }
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static class Dummy4 extends Dummy3 { Dummy4 i4; }
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static class Dummy5 extends Dummy4 { Dummy5 i5; }
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static class Dummy6 extends Dummy5 { Dummy6 i6; }
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static class Dummy7 extends Dummy6 { Dummy7 i7; }
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static class Dummy8 extends Dummy7 { Dummy8 i8; }
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static class Dummy9 extends Dummy8 { Dummy9 i9; }
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static class Dummy10 extends Dummy9 { Dummy10 i10; }
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static class Dummy11 extends Dummy10 { Dummy11 i11; }
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static class Dummy12 extends Dummy11 { Dummy12 i12; }
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static class Dummy13 extends Dummy12 { Dummy13 i13; }
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static class Dummy14 extends Dummy13 { Dummy14 i14; }
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static class Dummy15 extends Dummy14 { Dummy15 i15; }
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static class Dummy16 extends Dummy15 { Dummy16 i16; }
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static class Dummy17 extends Dummy16 { Dummy17 i17; }
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static class Dummy18 extends Dummy17 { Dummy18 i18; }
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static class Dummy19 extends Dummy18 { Dummy19 i19; }
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static class Dummy20 extends Dummy19 { Dummy20 i20; }
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static class Dummy21 extends Dummy20 { Dummy21 i21; }
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static class Dummy22 extends Dummy21 { Dummy22 i22; }
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static class Dummy23 extends Dummy22 { Dummy23 i23; }
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static class Dummy24 extends Dummy23 { Dummy24 i24; }
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static class Dummy25 extends Dummy24 { Dummy25 i25; }
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static class Dummy26 extends Dummy25 { Dummy26 i26; }
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static class Dummy27 extends Dummy26 { Dummy27 i27; }
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static class Dummy28 extends Dummy27 { Dummy28 i28; }
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static class Dummy29 extends Dummy28 { Dummy29 i29; }
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static class Dummy30 extends Dummy29 { Dummy30 i30; }
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static class Dummy31 extends Dummy30 { Dummy31 i31; }
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static class Dummy32 extends Dummy31 { Dummy32 i32; }
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static class Dummy33 extends Dummy32 { Dummy33 i33; }
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static class Dummy34 extends Dummy33 { Dummy34 i34; }
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static class Dummy35 extends Dummy34 { Dummy35 i35; }
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static class Dummy36 extends Dummy35 { Dummy36 i36; }
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static class Dummy37 extends Dummy36 { Dummy37 i37; }
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static class Dummy38 extends Dummy37 { Dummy38 i38; }
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static class Dummy39 extends Dummy38 { Dummy39 i39; }
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static class Dummy40 extends Dummy39 { Dummy40 i40; }
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static class Dummy41 extends Dummy40 { Dummy41 i41; }
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static class Dummy42 extends Dummy41 { Dummy42 i42; }
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static class Dummy43 extends Dummy42 { Dummy43 i43; }
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static class Dummy44 extends Dummy43 { Dummy44 i44; }
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static class Dummy45 extends Dummy44 { Dummy45 i45; }
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static class Dummy46 extends Dummy45 { Dummy46 i46; }
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static class Dummy47 extends Dummy46 { Dummy47 i47; }
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static class Dummy48 extends Dummy47 { Dummy48 i48; }
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static class Dummy49 extends Dummy48 { Dummy49 i49; }
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static class Dummy50 extends Dummy49 { Dummy50 i50; }
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/**
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* Write and read class descriptors to/from a stream.
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* Arguments: <# cycles>
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*/
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public long run(String[] args) throws Exception {
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int ncycles = Integer.parseInt(args[0]);
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StreamBuffer sbuf = new StreamBuffer();
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ObjectOutputStream oout =
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new ObjectOutputStream(sbuf.getOutputStream());
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ObjectInputStream oin =
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new ObjectInputStream(sbuf.getInputStream());
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ObjectStreamClass desc = ObjectStreamClass.lookup(Dummy50.class);
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doReps(oout, oin, sbuf, desc, 1); // warmup
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long start = System.currentTimeMillis();
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doReps(oout, oin, sbuf, desc, ncycles);
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return System.currentTimeMillis() - start;
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}
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/**
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* Run benchmark for given number of cycles.
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*/
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void doReps(ObjectOutputStream oout, ObjectInputStream oin,
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StreamBuffer sbuf, ObjectStreamClass desc, int ncycles)
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throws Exception
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{
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for (int i = 0; i < ncycles; i++) {
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sbuf.reset();
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oout.reset();
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oout.writeObject(desc);
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oout.flush();
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oin.readObject();
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}
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}
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}
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